What some people wish to see done to Beijing, Pyongyang and Teheran...
(Mushroom cloud of the 1952 "Ivy Mike" test, the world's first thermonuclear bomb. 10.4 megatons, enough to nearly wipe off Eniwetok Atoll in the Pacific off the face of the earth.)
And yes... messing with the Chinese is a VERY bad idea, unless you completely annihilate their arsenal first. I guess we haven't learned our lesson from the Korean War... over one million screaming Chinamen coming south from the Yalu River are "a fighting force of extraordinary magnitude"! [/Kentucky Fried Movie]
ETA: "Mike" vaporized Elugelab Island and irradiated much of Eniwetok atoll.